Finishing and cooling apparatus for tubular stereotype printing plates



Miy 1, 1923. 1,454,007

H. A. w. WOOD FINISHING AND COOLING APPARATUS FOR TUBULAR STEREOTYPE PRINTING PLATES Original Filed March 51 1 1 2 sheets-sheet 1 May 1, 1923. 1,454,007

H. A. w. WOOD" FINISHI'NG AND COOLING APPARATUS FOR TUBULAR STEREOTY PE PRINTING PLATES Original Filed March 31, 1915 2 Sheet's-Sheet 2 Patented May 1, 1923.

HENRY A. wIsE woon, on NEW YORK, N. Y., ASSIGNQR ago THE Woon NE SPAPER macrrrnnnv CORPORATION, OF NEW YORK, Y., A ooaronA'rmN on VIRGINIA.

' FINISHING AND COOLING APPARATUS FOR TUBULARSTE-BEOTYPE PRINTING PLATES.

Original application filed March 31, 1915, SerialNo. 18.248. Divided as this application fiieane'e'eiabr 11, 1919. Serial No. 344,236. I j

To all whom it may concern Be it known thatI, HENRY A. Wrsn Noon, a citizen of the United States, residing at New York, in the county of New York and State of New York, haveinvented a new and useful Finishing and Cooling Apparatus for Tubular Stereotype Printing Plates, of which the following is a specification. I

This is a division of my application for patent on casting, finishing and cooling apparatus for curved stereotype printing plates originally filed March 31, 1915, Ser. No. 182% renewed May 16, 1919 Serial No. 297,566. 1

This invention relates to a machine for making curved stereotype printing plates, especially those known as tubular plates.

The. objects of the invention are to provide a finishing and cooling mechanism arranged horizontally and supported inclependently of the casting box and adaptedto be connected with it o-peratively when the box is in position for delivering the cast plate, and to provide improved and simplilied means for cutting the tail from the plate after it is ejected, and an improved cooling device and controlling connections therefor as will appear. I

Reference is tobe had to the accompanying drawings, in which e 1 is a side elevation of a finishing and cooling machine constructed in accordance with this invention, parts being shown in longitudinal central section; 1

v Fig. 2 is a plan of the same with the parts in delivering position,

Fig. 3 is an. end elevation of the same; Fig. 4c is a sectional view on the line 14: of Fig. 1 Y

Fig. 5 is an end view of the casting box showing the-shaving blades, and

Fig. G is a horizontal sectional view on the line 66 of Fig. 43'

As stated, this invention is particularly adaptable for 1189*. in finishing and cooling the so-called tubular stereotype printing plates which are cast in a substantially complete-cylindrical form, simply a narrow gap being provided, the width jof the margin.

The machine is shown as arranged to receive these plates from a casting box 12.

The open end of the casting box is provided with a radial web 20 in the bearing 14. The revoluble support for a cast plate, shown-in the form of acore 1:5 is also p'ro vlded with shaving blades '22 thereon for shaving the interior of the plate as the same.

is ejected by the rotation of core as described in said original application. p

- A pedestal 25 is arranged for supporting the plate ejecting andcooling and tail cutting mechanism and the main part of the finishing mechanism. On this pedestal is showna horizontal driving shaft 23 having a drivlng pulley 24L thereon. This driving shaft is provided witha worm 26 meshing with a worm wheel 27 which is loosely mounted on a hub 28 having a vertical axis. This hub is keyed to a vertical shaft 29 supported centrally ,by the pedestal; The

worm wheel 27 carries a spring-seated pin 30. By means of a tapered cam 32, reciprocably supported by the pedestal 25, this pin is normally kept out of a hole or socket 31 in a flange on the hub. In this case the worm wheel 27 may revolvewithout transmitting any motion to the vertical shaft,,2,9. However, as soon as the cam 32- is. withdrawn bymea ns of a treadle r'nechanism33 or the like, the pin 30 is pressed down by a spring into contact with the surface of the flange on the hub 28. When it rotates to a position in which the pin 30 registers with the hole or socket 31, the pin will be forced into the socket and the shaft 29 willfthen be rotated positively. Y This shaft is connectedby 'mitr'e ears 34 with a shaft 35. This. shaft is provided with a slabbed end 36 adapted to'engage in a central slot 37 in the end of the core journal 14. This mechanism constitutes means for rotating the core and withdraw ing theplate. It will be understood that after this-mechanism is started and the pin I 30 leaves the vicinity of the 'cam'32, this cam is then allowed to spring back "into the path Of the pin, as in the other application mentioned. Consequently after a complete rotationth'e pin engages, this cam and is automatically withdrawn from the socket 31. This stops th'e shaft 35 in the position shown in Fig. 2. The slabloed en'dis adap ed tobe received by the, slotted end ofthe core journal 14. It wil l,be seen the refore thatthe parts are shownin a position in which by pressing, on the treadle 3,3, the

core will be turned, the plate ejected, and

its interior shaved, and that the parts will then come back into position for starting another operation and stop automatically.

The pedestal 25 is provided with a plate support or saddle 38 constituting a bearing for the shaft and aligned with the core. This saddle receives the cast plate as it slides out of the casting box and directs it on a tail cutting cylinder 39 which is aligned with the saddle 38. The shaft 35 extends through this tail cutting cylinder and overhangs its bearings so as to support this cylinder loosely on it, the cylinder being free to rotate on the end of the shaft 35.

, The cylinder 39 has a cored water space 41/ The surface of the cylinder is provided with perforations 42 and water is supplied to this space 41 through a pipe 43, valve 44, and tube 45. The valve is concentric with the shaft 35. The cylinder 39 is provided with a handle 46 by which this cylinder can be rotated on the shaft 35. l/Vhen the handle is rotated obviously the tube and valve 44 are rotated also. The passage in the valve 44 is so located with respect to the passage in the valve casing that when the end of the handle is down as shown in Fig. 1 the valve will be closed. As soon as the handle and cylinder are turned from that position the valve opens and remains open until the cylinder comes,

back substantially to receiving position. It is intended to rotate the cylinder and plate a complete revolution. A pan 47 is shown for collecting the water and draining it ofi'.

Vertically below the cylinder 39 is a tail cutting mechanism which comprises a chain and sprocket connection 48 for driving a shaft 49 from the shaft 23. On this shaft is a beveling tail cutter 50 which cuts OK the tail of-the plate as thesameis rotated with the cylinder 39.

It will be observed that the saddle 38, although cylindrical in form is provided with a longitudinal finlike support 51 at the bottom thereof having a thickness not greater than the thickness of the web 20. This is to receive the gap in the plate and to guide the plate along the saddle after it moves away from the web 20 which guides it until it is entirely out of the casting box. The cylinder 39 is also provided with a fin 52 longitudinally located thereon which comes into a position at the bottom when the handle 46 is located at the bottom, so as to register with the web 51. In this way I the plate is substantially fixed on the cylinder 39 and positively turns around with it.

The operation of the device is as follows z-The treadle 33 is depressed and the plate with its -matrix and pouring sheet attached is ejected from the box by the rotation of the threaded core. The pin 30 is then automatically withdrawn and the shaft 35 stops. The plate then rests on the saddle 38 and is manually moved over on the cooling saddle and tail cutting cylinder 39, the gap in the plate at the margin being kept at the bottom throughout its motion'by the web 20 and the fins 51 and 52. It will be understood, of course, that a space is provided in the tail for allowing it to pass over the tail cutter 50. The handle 46 is then turned and the plate is cooled and the tail trimmed off during a revolution of the cylinder 39.,

Although I have illustrated and described only a single embodiment of the invention, ll am aware of the fact that many modifications can be made therein by any person skilled in the art without departing from the scope of the invention as expressed in the claims. Therefore, I do not wish to be limited to all the details of construction herein shown and described, but what I do claim is 1. In a machine of the character described, the combination of a saddle for receiving a substantially tubular stereotype printing plate, said saddle being of cylindrical form and having a longitudinal fin at the bottom for supporting it and for receiving a gap in the side of the plate, a cylinder freely rotatable on the axisof the saddle for receiving the plate therefrom and having a longitudinal fin adapted to register with said fin, whereby when the plate is moved from the saddle on the cylinder it will be capable of rotating with the cylinder.

2. In a machine of the character described,vthe combination of a saddle for receiving a substantially tubular stereotype printing plate, said saddle being located in horizontal position and having a longitudinal fin at the bottom for supporting it and for receiving a gap in the side of the plate, a cylinder freely rotatable on the axis of the saddle for receiving the plate therefrom and having a longitudinal fin adapted to register with the first named fin, whereby when the plate is moved from the saddle on the cylinder it will-be capable of rotating with the cylinder, and means for applying a cooling liquid to the inner surface of the plate when the cylinder rotates, and for shutting off said liquid when the cylinder is in its normal receiving position.

3. In a tubular stereotype plate making machine, the combination of a plate receiv ing saddle and a rotatable cooling cylinder for receiving the plate {from the saddle, l0- T shutting off said liquid when the cylinder is in its normal receiving position.

5. In a cooling device for a stereotype printing plate, the combination of a cylinder for receiving the plate, freely rotatable on its own axis, means for directing a cooling liquid from the cylinder on the interior of the plate, a valve concentric withsaid cylinder, said valve being arranged to close when the cylinder is in one position and to open when the cylinder is turned on its axis out of said position. I

6. In a cooling device for a stereotype printing plate, the combination of a cylinder for receiving the plate, freely rotatable on its own axis, means for directing a cooling liquid from the cylinder on the interior of I the plate when the cylinder is in one position and a handle connected with said cylinder for turning it and the valve simultaneously. 8. In a cooling device for a stereotype position and to open when the cylinderlis turned out of said position, means for turning the cylinder. and valve, and a tail cutter in position for cutting plate as the cylinder rotates. i y

9. Thecombination with a sup-port for a casting capable of turning on its own axis,

of a power driven shaft located in position outside said support but on a parallel axis and adapted to engagethe support for rotating the casting, and means carried by the support for shaving the interior of the cast plate while the casting is being rotated.

10. In a tail cutting device for tubular printing plates, the combination of a fixed saddle for receiving the plate in a definite position, with a rotatable cylinder in axial alignment therewith forreceivingthe plate directly therefrom, and a tail cutter for removingthe tail from the plate while on the cylinder, said saddle and cylinder having I fins adapted to register for guiding the plate from one to the other. i

a tail from' the In testimony whereof I have hereunto afiixed my signature,

HENRY A. WISE WOOD, 

